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@eine fates @anni 'ffra Lettet;s Patent No. 8.1,8013 clated'eptember I,1.868.

IMPROVEMENT IN .WELL-TUBES.

digi tlphnle maar in intim ettevrs iiient :uur mating part at tige time.

y Be it known that I, LORENZO LOVEJOY, of Malden, in the county ofMiddlesex, and State of Massachusetts, V.have `invented a new and usefulImprovement in- Well-Tubes, of which the following is a full, clear, andexact description, reference being had to the accompanying drawings,making a part of this specification, in which- Figure 1 represents anelevation of the lower'end of a well-tube embodying my improvemenn'andFigure 2 is a longitudinal vertical section of the same. y

The nature of my invention consists in the combination, with thelowerend-of` a well-tube, of a series of` small curved or bent perforatedtubes, placed within and opening on opposite sides of the tube, and soconstructed and arranged that any hard soluble substance which may beplaced therein when the tube is to be forced into the ground, will, upontheapplication of hot water or other suitable liquid, immediately beentirely ,expelled from the said tubes, and' escape to the outside ofthe well-tube, leaving the perforated tubes perfectly clear, and readyfor the reception of water from the outside of the well-tube.Well-tubes, which are used for being forced into the earth to asuilicient depth to obtain water, have been provided with a struinen-ofperforated metal or wire gauze,placed around the Outside for 'thepurpose of preventing the entrance of'sand and other substances whichwould be liable to obstruct the lower end of the well-tube. Shortperforated tubes, extending straight across the well-tube, have alsobeen used; but such have beenlfou'ud to'be ineicie/nt for the purposesintended.

In the rst instance,vthe pressure of the clay or other substance against.the strainer prevents the water from passing freely into the tube, andsuch substances'are also liable to be forced into, thetube. In thesecond case, the substance vplaced 'in theshort, straight, perforatedtubes, before sinking the main tube, will not readily run oi upon theapplication of the hot water or liquid, but will remain in the. tube, orescapeonly after repeated applications of such liquid, thus interferingwith the free entrance of the water into the well-tube when the latterhas been sunk. By my invention, it is believed that these difficultiesare entirely overcome, and an efficient and reliable well-tube obtained.

Referring to the drawings, a represents the lower portion Aof awell-tube, to the bottom of which is secured, in any suitable manner,the boring-tooll Ab. The point of this tool is made octagonal, as beingbest adapted to facilitate its sinking in the ground. Within the lowerportion of the well-tube is ,secured a series of short perforated tubes,of an arched or curved form, as shown at e, and Opening On oppositesides of the well-tube. They are madeeircular by preference, but theymay be made square, or of other form, and are bevelled at their point ofconnection with the main tube, so'as toinsure the escape of any loosesubstance from within the short tubes.4 Instead of an arched or curvedform, the short tubes may be pointed at the centre, as shown at d, iig.2.

The short perforated tubesare arranged within the main tube alternately,at right angles with each other.

These shortperforatcd tubes are designed to be filled, before sinkinginto the ground, with sonne-substance which willremain in the same untilcleaned by the application of hot water or other liquid, poured into thetop of themain tube, for the Vpurpose of preventing the entrance of clayor other substance through which the main tube may be forced,A VIt willthus be seen that ,as soon as any water Or other liquid is poured uponand enters into the arched or bentY perforated tubes e d, every particleof the 'substance with which they are filled will immediately becarriedoil' by the inclination of such tubes, leaving the same 'entirely fr ecand unobstructed, and ready for the admission ofthe water into `the maintube. Thisliis, as will'be very evident, a very important feature, andone which renders a well-tube thoroughly eihcient for the purposesintended.

I do not claim the application of short perforated tubes to a maintnbe,but

'What I claim as myinvention, and desire to secure by Letters Patent, isl The combination, with awell-tube, of a series of curved or bentperforated tubes, when constructed, applied, and operating substantiallyas and for the purpose set forth. I

In testimony whereof, I have signed my name to this specification inthepresence of two subscribing'witnesses.

Witnesses:

' J. H. ADAMS,

M. S. G. WILDE.

